Answer: 5 feet
Given: The total length of the rope = 35 feet
Let the length of the shorter section be x, then the longer section would be 6x.
According to the question, we have
Hence, the length of the shorter section = 5 feet
I’m not 100% sure but I think it’s because 20/25 can still be simplified further, while the other 3 can’t.
The image is the answer i couldn't type that in so i took a screenshot
The answer is B